{"instruction": "You are an expert in named entity recognition. Please extract entities that match the schema definition from the input. Return an empty list if the entity type does not exist. Please respond in the format of a JSON string.", "schema": ["person", "food", "biology"], "input": "In 1529 , a measles outbreak in Cuba killed two-thirds of those natives who had previously survived smallpox ."}
{"person": [], "food": [], "biology": []}